Commercial ventilation systems accumulate dust, bacteria, and contaminants over time, reducing airflow efficiency and indoor air quality. BESA TR19 sets the cleanliness standards for ventilation systems and provides the methodology for restoring them. ConAir provides compliant cleaning of both extract and supply ductwork.
Extract duct cleaning — removing contaminants from exhaust ductwork to restore airflow and prevent the spread of airborne pollutants.
Supply duct cleaning — cleaning supply air ductwork to ensure the air delivered to occupied spaces is clean and free from dust and bacteria.
Pre and post-clean inspection — we assess contamination levels before and after cleaning, providing written evidence of compliance.
BESA TR19 compliant methodology — our cleaning process follows the TR19 standard for internal cleanliness of ventilation systems.
Improved indoor air quality — clean ductwork delivers better air quality for staff, guests, and customers.
Suitable for all premises — hotels, offices, care homes, schools, retail, and commercial kitchens.
Frequently Asked Questions
What is the difference between extract and supply duct cleaning?
Extract ductwork removes stale, contaminated air from a building. Supply ductwork delivers fresh, conditioned air in. Both can become contaminated over time. A full ventilation clean addresses both to ensure the system is delivering and removing air effectively and hygienically.
How do I know if my ventilation ducts need cleaning?
Signs include visible dust or debris around grilles, reduced airflow, increased energy bills, unusual odours, or complaints from staff about air quality. However, ducts should be cleaned on a planned programme regardless of visible signs, as contamination can build up unseen.
How long does commercial duct cleaning take?
This depends on the size and layout of the system. A small commercial premises may take half a day; larger systems may require a full day or multiple visits. We assess your system beforehand and provide a clear timeframe.